[MPlayer-users] [BUG] lavc error - 2pass curve failed to converge

[bonnie clyde]

Corey Hickey wrote:
> vitko wrote:
>> 2 pass lavc encoding fails with current SVN, I'm getting following
>> on second pass:
>>
>> ...
>> videocodec: libavcodec (720x576 fourcc=34504d46 [FMP4])
>> [mpeg4 @ 0xbf80d0]Error: 2pass curve failed to converge
>> Could not open codec.
>> ...
>>
>> Commands used were (stripped to bare minimum? from "hi-quality", but
>> still producing the error):
>>
>> $ mencoder dvd://1 -dvd-device . -nosound -ovc lavc \
>> -lavcopts vcodec=mpeg4:vpass=1 -frames 500 -o /dev/null
>> $ mencoder dvd://1 -dvd-device . -nosound -ovc lavc \
>> -lavcopts vcodec=mpeg4:vpass=2 -frames 500 -o rctest.avi
>>
>> It's too late and maybe I missed something.
>
> Did you try reverting ffmpeg r5422 like I suggested (in an off-list 
> discussion) yesterday?
>
> Giacomo, try this with the attached patch:
> $ cd .../mplayer/libavcodec
> $ patch -p2 -R < /tmp/ffmpeg_r5422.eml
>
> I don't know if that will work -- only that it caused me some similar 
> problems a while ago.
>
> -Corey
> ------------------------------------------------------------------------
Just so you all know, I did a 2 pass ffmpeg encode on a dv file just a 
few weeks ago. All went well. Why it would work on a dv file and not a 
vob is beyond me, though.

bc